Re: [PATCH] clk: bcm: Add driver for Northstar ILP clock
From: Ray Jui <hidden>
Date: 2016-07-29 20:59:12
Also in:
linux-clk, lkml
On 7/29/2016 1:55 PM, Florian Fainelli wrote:
On 07/29/2016 01:52 PM, Rafał Miłecki wrote:quoted
On 29 July 2016 at 22:49, Ray Jui [off-list ref] wrote:quoted
On 7/29/2016 1:46 PM, Rafał Miłecki wrote:quoted
On 29 July 2016 at 22:44, Ray Jui [off-list ref] wrote:quoted
On 7/29/2016 5:58 AM, Rafał Miłecki wrote:quoted
From: Rafał Miłecki <rafal@milecki.pl> This clock is present on cheaper Northstar devices like BCM53573 or BCM47189 using Corex-A7. This driver uses PMU (Power Management Unit) to calculate clock rate and allows using it in a generic (clk_*) way.I thought Northstar uses Cortex A9 instead of A7?[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine model: Tenda AC9Yeah ARMv7 instruction set but the core is Cortex A7. Both Cortex A7 and A9 use ARMv7 instructions.OK, sorry for irrelevant part then :) This is from BCM4709C0: bcma: bus0: Core 10 found: ARM Cortex A9 core (ihost) (manuf 0x4BF, id 0x510, rev 0x07, class 0x0) This is from BCM47189B0:: bcma: bus0: Core 3 found: ARM CA7 (manuf 0x4BF, id 0x847, rev 0x00, class 0x0)This is indeed a Cortex A7-based chip, not clear if putting this chip in the Northstar family is accurate here because it really seems to have a different architecture from the NS/NSP family here...
Okay I got it. Good to know! I got confused by it being called "Northstar" because as far I can remember, none of the Northstar chips uses Cortex A7 (or maybe even that assumption is incorrect, :)) Thanks, Ray